a.Unidad de Materiales, Centro de Investigación Científica de Yucatán A. C., Calle 43 No.130 x 32 y 34, Col. Chuburná de Hidalgo, C.P. 97205, Mérida, Yucatán, México
b.Centro de Investigación y de Estudios Avanzados del IPN, Unidad Mérida, Departamento de Física Aplicada, Km. 6 Antigua Carretera a Progreso, AP 73-Cordemex, 97310 Mérida Yucatán, México
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José Antonio Tec-Sánchez, Andrés Iván Oliva Arias, Manuel Aguilar-Vega, et al. Preparation and Characterization of Flexible, Transparent and Thermally Stable Aromatic Co-polyamides. [J]. Chinese Journal of Polymer Science 37(2):136-141(2019)
José Antonio Tec-Sánchez, Andrés Iván Oliva Arias, Manuel Aguilar-Vega, et al. Preparation and Characterization of Flexible, Transparent and Thermally Stable Aromatic Co-polyamides. [J]. Chinese Journal of Polymer Science 37(2):136-141(2019) DOI: 10.1007/s10118-019-2190-7.
Two aromatic co-polyamides were synthesized combining two diacid monomers containing bulky pendant groups, 5-(9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximido)isophthalic acid (DEAIA) and 5-,tert,-butylisophthalic acid (TERT), with 4,4′-(hexafluoroisopropylidene)dianiline (HFA) or 2,3,5,6-tetramethyl-1,4-phenylenediamine (Durene) by direct polycondensation. The structures of the obtained aromatic co-polyamides were confirmed by FTIR, Raman and ,1,H-NMR. The co-copolyamide films, DHTH and DDTD, exhibited rms-roughness values between 0.94 and 1.60 nm, respectively. Moreover, they presented good thermal stability up to 300 °C. Young’s moduli of the co-polyamide films were between 4.1 and 4.3 GPa. X-ray diffraction results showed that the co-polyamide films were amorphous due to the incorporation of both bulky pendant groups,tert,-butyl and dibenzobarrelene. The combination of bulky pendant groups provided intrinsically transparent co-polyamide films with a transmittance higher than 88% in the range of 400−780 nm. Due to these outstanding film and optical properties, they are suggested to be flexible substrates in applications for solar cell and other portable electronic devices.
Co-polyamidesFlexible filmsTransmittanceThermal stabilityPolycondensation
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